November 2009

Live Migrations Are Serial, Not Concurrent

November 30, 2009 // 0 Comments

Normally when you move 2 VM’s from one host to another using Live Migration they move one at a time.  Yes, the VMM job pauses at 50% for the second machine for a while – that’s because it hasn’t started to replicate memory yet.  The live migrations are serial, not [...]

How Well Does Live Migration Perform?

November 30, 2009 // 0 Comments

Excellently.  But why believe me?  I’ve just added a node to our cluster and moved a VM throughout the infrastructure in every combination I could think of, from host A to B, from B to A, from A to C, from C to A, from B to C … you get the idea. While I was going this I was RDP’d [...]

Adding a Node To A VMM Managed Hyper-V Cluster

November 30, 2009 // 0 Comments

I’ve just gone through this process so I thought I’d document what I did: Have a test VM ready and running on the cluster.  You’ll be moving it around to/from the new node. Don’t use a production machine in case something doesn’t work. Built the new node.  Set up hardware, [...]

How W2008 R2 Live Migration Works

November 29, 2009 // 1 Comment

Let’s recap the different types of migration that we can get with Windows Server Hyper-V and System Center Virtual Machine Manager: Quick Migration: Leveraging Windows Failover Clustering, a VM is treated as a clustered resource.  To quick migrate, the running state is saved to disk [...]

My Demo Environment For Next Friday

November 29, 2009 // 0 Comments

Here’s the demonstration setup I’ll be using for the deployment session I’m presenting on Friday.  I’ll be talking about Windows 7 and Windows Server 2008 R2 deployment.  The technologies covered are WAIK, WDS and MDT 2010. The demo machine is a Dell Latitude 6500.  It [...]

Irish Windows 7 and W2008 R2 Community Launch Videos

November 29, 2009 // 0 Comments

Microsoft Ireland has posted the video of the Dublin community launch of Windows 7, Windows Server 2008 R2 and Exchange 2010.  I was lucky enough to be a part of the presentations, talking about the Microsoft Assessment and Planning Toolkit for Windows 7, the Application Compatibility Toolkit [...]

Playing With W2008 R2 WDS

November 29, 2009 // 0 Comments

I’ve been doing the last bits of preparing for my Windows User Group session on deploying Windows 7 and Windows Server 2008 R2 (details here and LiveMeeting webcast here) for this Friday (December 4th, 09:30 GMT – it’ll be recorded).  I’ve been trying out a few of the features of [...]

WordPress Permalinks Not So Great After All

November 29, 2009 // 0 Comments

I had to disable permalinks today in WordPress.  I found that scans of my site were failing because lots of URL’s could not be resolved.  This was because Permalinks was miscalculating what do with with punctuation in a title.  It’s a pity.  It also means every URL on the [...]

Network Requirements for Live Migration

November 28, 2009 // 0 Comments

As more and more people start deploying Windows Server 2008 R2 Hyper-V, the most common question will be: “how many NIC’s or network cards do I need to implement Live Migration?”.  Here’s the answer for you. Your minimum optimal configuration is: NIC #1: Parent partition (normal [...]

W2008 R2 Hyper-V Hot-Add Storage

November 27, 2009 // 1 Comment

One of the features not being talked about too much in Windows Server 2008 R2 Hyper-V is the ability to add new storage.  What does this mean?  It means you can add new virtual hard disks (VHD’s) to a VM while it is running.   It does not mean you can resize a VHD while the VM [...]
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